Blockchain transaction on the chain
transactions around core enterprises, realize the difficult circulation of large fixed assets, and promote the improvement of financial circulation efficiency.
for example, when you are hospitalized and discharged from a hospital, you need to queue up to go through a lot of proceres, such as printing the flow details ring hospitalization, for example, going through the discharge settlement proceres, for example, going through the medical insurance settlement, and so on. Without half an hour, these proceres can't be completed. Because once you go through the discharge proceres, in fact, it is equivalent to the end of the hospital proceres. When it comes to medical insurance settlement, it is not only the hospital system, but also the medical insurance system. At present, the data systems of the two departments can not be directly connected, so they need to queue up to handle it by themselves
the blockchain can provide a distributed accounting mode. Under the protection of cryptography knowledge, you can not only share data with other companies, systems and departments, but also ensure that the data is owned by you. Through distributed accounting, you can achieve cross department cooperation and real-time settlement
after being linked, all information is open and transparent, and any information can be found in the block.
For blockchain messages, bitcoin is to blockchain what e-mail is to the Internet. As we all know, e-mail for the first time in the history of human information dissemination and exchange realizes the function of timely, free and verifiable sending data to anyone else in the world. Both the sender and the receiver can save copies of the data sent in e-mail. However, the e-mail data copies retained by both parties also become an inherent defect of online value transfer, because both parties have their own value. Therefore, it is necessary to ensure that the value is not double paid by the existence of third-party institutions, such as banks, stock exchanges, clearing centers or notaries. As an internet protocol, bitcoin can transfer value to each other instantly and safely without the existence of intermediary organizations such as credit granting third party, which reces transaction cost and improves transaction efficiency. Xiaobian now arranges the schematic diagram of blockchain technology and related technical principles for you
literally, blockchain is a distributed account book system composed of a series of data blocks generated by cryptographic methods. Each data block contains a large amount of transaction information, which is used to verify the validity of its information and generate the next block. These blocks are arranged in the order of generation, and each block is a node
the remarkable feature of blockchain is that there is no third-party supervision as a central server, and the transaction information in the block cannot be changed. The information contained in the block can be financial transactions or any other digital transactions, including documents. The success of the Internet business model, which has dominated the business world of human society for a long time, depends on the third-party financial institutions as credit granting institutions to process and mediate electronic transactions. The role of the third-party credit granting institutions is to verify, protect and save transaction records
However, there are still a large number of fraulent online transactions, which need to be mediated by a third party, resulting in higher transaction costs. Bitcoin, based on blockchain technology, uses encryption to prove, rather than credit a third party, so that all parties willing to trade can achieve online transactions through the Internetevery transaction can be protected by digital signature and sent to the "public key" of the receiver who uses the sender's "private key" for digital signature. The owner of bitcoin, namely cryptocurrency, needs to prove the ownership of its "private key" in order to consume and trade online. The receiving party uses the sender's "public key" to verify the digital signature on the transaction, that is, the ownership of the other party's "private key"
each transaction is broadcast to each node in the bitcoin network and recorded in the public ledger after verification. Moreover, before each transaction is recorded in the public ledger, it needs to verify its validity. Therefore, the verification node needs to ensure two things before recording each transaction: that is,
(1) consumers have the signature authentication of their encrypted electronic currency
(2) there are enough encrypted e-money in consumer accounts
Figure 1 shows the transaction process and principle based on blockchain technology
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